Feed mechanism for saw-mills



(No Model.) 2 Sheets-Sheet l. H. T. BASIM.

FEED MEGHANISM POR SAW MILLS.

No. 360,267. vPateled Mar. 29,' 1887.

@@@Zf/Mg WITWESSES' mmew/ v (No Model.) 2 Sheets-Sheet 2.

H. T. BASIM.

FEED MEGHANISM EUR SAW MILLS.

N0. 860,267. Patented Mer. 29, 1887.

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UNrTnn STATES PATENT OrrrcnO HENRY THOMAS'BASIM, OF DECATURVILLE, OHIO.

FEED NIECHANISNI FOR SAW-MILLS.

SPECIFICATION forming part of Letters Patent No. 360,267, dated March 29, 1887.

Application filed September 20, 1836. Serial No. 214,023.

To @ZZ iiftom 'it may concern:

Be it known that I, HENRY Tetonas BAsIir, a citizen of theUnited States, residing at Decaturville, in the county of Vashington and State of Ohio, have invented certain new and useful Improvements in Saw-Mills; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to inake and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in Which-q Figure 1 is a perspective view of my improved saw-mill. Fig. 2 is a top plan view of the same. Fig. 3 is a perspective view, showing portions broken away, of the gearing operating the carriage. Fig. 4 is asimilar view of the rocking and sliding shaft in the same, showing portions broken away of the hollow shaft; and Fig. 5 is an enlarged detail View ot the operating-lever and its manner of mounting and construction.

Similar numerals of reference indicate corresponding parts in all the figures.

My invention has relation to saw-1nills having a circular saw and a reciprocating carriage; and it consists in the improved con struction and combination of parts of the mechanism for reciprocating the carriage, by means of which the carriage may be reciprocated at different speed,according to the character of the log to be sawed, as hereinafter more fully described and claimed.

In the accompanying drawings, the numeral 1 indicates the saw-frame, and 2 indicates the track, upon which the carriage 3 is reciprocated, the said carriage having the usual rollers, l, for traveling upon the track, and having the usual cogged rack, 5, engaged by the pinion G upon a shaft, 7, journaled transversely in the sawl'rame near one end of the same.

The saw S is secured upon the end of the saw-mandrel 9, which is journaled in transverse bearings upon the upper side of the saw-frame, and this mandrel is pro vided with the drive-pulley 11 at its outer end, and with a friction-pulley, 12, against which a larger friction-pulley, 13, may be brought to bear, the said pulley being secured upon a shaft or (No model.)

drum, 11, having a chain, 15, winding upon it, and having a movable bearing, 16, and a lever, 17, for operating it, the chain passing over suitable pulleys and passing to the logturning upright 1S at the side of the track, the said log-turning mechanism having` been described and shown in the specification ot' Letters Patent No. 834,330, granted tome on the 12th day of January, 1886, and forming no part of the present invention, being merely shown as belonging to the mill.

The sawinandrel is provided with a dished friction-pulley, 19, and with a conical frictionpulley, 20, secured a short distance from the concave side of the pulley, and a bearing, 2l, for the mandrel is placed in the space between the two pulleys, the friction-surfaccsof which have the same angle.

The carriage operating shaft is provided with a beveled crown-wheel, 22, at its outer end, and is supported near the said wheel by a bearing, 23, at theend of a bracket, 24, projecting from the end piece of the saw-frame. One end of an oblique shaft, 25, is pivoted in the end of this bracket and has an upwardlyprojecting arm, 2o', and the other end of the shaft is formed into a downwardlybent arm, 27, having its end bent and pivoted in the bearing for the mandrel between the frictionpulleys, so that that end of the shaft may be rocked toward the friction-surfaces of the said pulleys by rocking the arm at the other end of the shaft, and a tubular shaft, 28, is journaled upon this rocking shaft and has a frictionpul ley, 29, sliding upon vits end and revolving with it, the tubular shaft having a feather, 30, and the pulley having a notch, 3l, inY its bore, the said pulley being thus capable of being brought to bear against the friction-surface of either friction-pulley by the rocking of the oblique shaft and being capable of being slid upon the tubular shaft.

The intermediate pulley is formed with a circumferential groove, 82, upon its hub,and a frame, 33, tits in this groove and has a rod, 34, attached to it, the other end ofwhich rod is pivoted to an arm, 35, projecting downward from arock-shaft, 3(5,journaled in bearings 37 and 3S upon theinner side of the end piece of the saw-frame and upon the upper edge of one side piece of the frame. 'This rock-shaft is IOO formed with a semi-conical head, 39, upon the end near the end piece of the frame, and a lever, 40, is fulcrumed upon the flat face of this head,having a connecting-rod, 41, pivoted to its lower end, the other end of the said rod belng pivoted to the upwardly-projecting arm at the end of the rocking oblique shaft,so that by tilting the said lever upon the face of the head the oblique shaft may be rocked, bringing the intermediate pulley in contact with either of the friction-pulleys. The tubular shaft is provided with a conical pinlon, 4:2, which meshes with the beveled crown-wheel u ponlthe carriage-operatin g shaft, so that when theintermediate pulley is rev olved, by being brought into contact with either of the friction-pulleys, the carriageop c rating shaft may be revolved in either direct1on,gigging the carriage in either direction. A friction block or bar, 43, is secured at its upper end to the inner side of the end piece of the saw-frame, and has ascrew, 44, passing through the other end of the bleek, bearing Aagainst the inner side of the end piece, and the face of this friction-block may be brought to bear against the conical face of the semi-coni4 cal head of the rock-shaft,holding it by friction 1n any desired position. Y

It will thus be seen that whenv the saw-mandrel 1s revolved the intermediate pulley may be brought to bear against either the dished face of the dished friction-pulley,or it may be brought to bear against the face of the conical pulley, the carriage being brought forward with the log against the saw when the intermediate pulley is brought to bear against the conical pulley, while it will be brought back by bringing the pulley in contact with the dished pulley, and the speed of the carriage may be increased or decreased by sliding the intermediate pulley toward the wider portion vof the lsaid pulley or toward the narrower portion. The carriage will be brought back with a greater speed than the speed with which it Will be brought forward, as the' dished pulley has a larger diameter than the conical pulley, and during the travel of the carriage in either direction the speed may be changed by sliding the pulley upon the tubular shaft by means of the rock-shaft and its lever.

Having thus described my invention, I claim and desire to secure by Letters Patent of the United Statesl. In a saw-mill, the combination of the saw-mandrel having a dished friction-pulley and a conical pulley secured upon it at a short distance from each other, and a shaft journaled at one end between the pulleys and provided with an intermediate pulley near said end adapted to be moved upon said shaft, being connected to the carriage-operating mechanism, a rock-shaft having a lever and an arm secured thereto, and a rod connecting said arm with said intermediate pulley, as and for the purpose shown and set forth.V

2. In a saw-mill, the combination of the saw-mandrel having a dished pulley and a lconical pulley secured upon it at a short dising arm, a rod connecting said arm with said intermediate pulley, and'a friction block adapted to bear against said head, as and for the purpose shown and set forth.

3. In a saw-mill, the combination of the saw-mandrel having a dished pulley and a conical pulley secured upon it at a short distance from each other, a shaft pivoted at one end and having a downwardly-projecting arm at the other end pivoted between the frictionpulleys and formed with an upwardly-projecting arm near the pivoted end, a tubular shaft upon the rocking shaft having an intermediate pulley upon the end lnearest the bent arm and having a pinion at its other end, the carriageoperating shaft provided with a cog-Wheel meshing with the pinion, and a lever having a connecting-rod pivoted to the arm projecting upward from the rocking shaft.

4. In a saw-mill, they combination of the saw-mandrel having a dished pulley and a rconical pulley secured upon it at a short distance from each other, the carriage-operating shaft having a beveled crown-wheel at one end, a shaft having one end pivoted inside of the said crown-wheel and having its other end formed with a downwardly-projecting arm pivoted between the frictionpulleys, a tubular shaft upon the rocking shaft having a beveled pinion meshing with the crown-wheel, an intermediate pulley sliding upon and turning with the tubular shaft between the faces of the friction-pulleys, a rock-shaft having a semiconical head and a downwardly-projecting arm, a connecting-rod pivoted to the said arm and connected to the sliding intermediate pulley, a lever fulcrumed upon the flat face ofthe conical head and having a connecting-rod pivoted to it and to an arm projecting upward from the end of the rocking shaft having the tubular shaft,A and a friction block secured upon the frame bearing against the conical face of the semi-conical head and having a screw passing through the lower end bearing against the face of the end piece of the frame, as and for the purpose shown and set forth.

In testimony that Iclaim the foregoingas my own I have hereunto affixed my signature in presence of two witnesses.

HENRY THOMAS BASIM. Witnesses:

AUGUST PETERSON, WM. SEOHER.

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